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| Study of Oxidizing Property of Hydroperoxide in Uranium In-situ Leaching |
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Received:May 22, 2013
Revised:May 26, 2013
Accepted:May 27, 2013
Published Online:November 20, 2013
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| DOI：10.3969/j.issn.1007-7545.2013.12.007 |
| KeyWord:hydroperoxide; uranium in-situ leaching; oxidant |
| Author | Institution |
| JIAO Xueran |
中国地质大学（北京） |
| SUN Zhanxue |
东华理工大学 |
| SHI Weijun |
东华理工大学 |
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| Abstract: |
| With hydroperoxide as oxidant to infiltration leach a sandstone-type uranium deposits in Xinjiang, the effects of infiltration conditions on uranium leaching rate were investigated. The results show that the insoluble U(Ⅳ) of the ore is satisfactorily oxidized and leached with hydroperoxide in NH4HCO3 leaching solution. The total uranium leaching amount increases with increase of dosage of hydroperoxide. The total uranium leaching rate is 76.40% with dissolving oxygen concentration of 600 mg/L after five-roundtrip leaching, which can meet the requirements of in-situ leaching process. |
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